The krebs_texture_pack.7z file you have requested: Clear Sky / Skins / Other / KREBs Texture Pack - 99.9mb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Clear Sky and upload any files you want to share or are missing. This is the only information we could locate:
This is pack with couple of new or remade textures of stalkers, monsters, PDA, weapons and others. Includes better skins of cut-off mutants (models and configs not included).